37
• PANEL BOARD IC701 TMP88CS77AF-1A86 (DISPLAY CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
LED SEL
O
LED selection signal output terminal
2 to 12
LED0 to LED10
O
LED drive signal output terminal
13
STANDBY LED
O
LED drive signal output terminal (I/
1
)
14
TIMER LED
O
LED drive signal output terminal (TIMER SELECT)
15
VOL A
I
Rotary encoder pulse input from the S751 (VOLUME)
16
VOL B
I
Rotary encoder pulse input from the S751 (VOLUME)
17 to 22
BPF1 to BPF6
I
Spectrum analyzer drive signal input from the spectrum analyzer band-pass filter (IC704)
23
L+R
I
Spectrum analyzer drive signal input from the spectrum analyzer band-pass filter (IC704)
24
KEY0
I
Key input terminal (A/D input) (S621 to 626) NEXT, DSP, V-GROOVE, MODE SELECT,
TITLE, DVD MENU keys input
25
KEY1
I
Key input terminal (A/D input) (S641 to 647, S649 to 652) TAPE A
n
/
N
, TAPE B
n
/
N
,
x
, DVD
u
, TUNER/BAND,
M
,
m
,
>
,
.
keys input
26
KEY2
I
Key input terminal (A/D input) (S601 to 609, S611 to 614) I/
1
, DISPLAY, FUNCTION,
SELECT, RETURN, PREVIOUS, HI-DUB, REC PAUSE/START, CD SYNC, PRO LOGIC,
DVD 5.1CH, GROOVE-EX, GROOVE keys input
27
STICK1
I
Joy stick controller signal (up/down) input from the S701 (PUSH ENTER)
28
STICK2
I
Joy stick controller signal (left/right) input from the S701 (PUSH ENTER)
29
VSS FOR I/O
—
Ground terminal
30
VASS
—
Ground terminal (for A/D conversion)
31
VAREF
I
Reference voltage (+5V) input terminal (for A/D conversion)
32
VDD
—
Power supply terminal (+5V)
33
GRID EXT CLK
O
Grid drive clock signal output to the FL DRIVE (IC703)
34, 35
2G, 1G
O
Grid drive signal output to the fluorescent indicator tube (FL701)
36 to 50
P35 to P49
O
Segment drive signal output to the fluorescent indicator tube (FL701)
51
VDD FOR VFT
—
Power supply terminal (+5V)
52
GRID EXT RESET
O
Reset signal output to the FL DRIVE (IC703)
53 to 86
P34 to P1
O
Segment drive signal output to the fluorescent indicator tube (FL701)
87
VKK
—
Power supply terminal (–40V) (for fluorescent indicator tube drive)
88
VDD FOR CPU
—
Power supply terminal (+5V)
89
XIN
I
System clock input terminal (12.5 MHz)
90
VSS FOR CPU
—
Ground terminal
91
XOUT
O
System clock output terminal (12.5 MHz)
92
RESET
I
System reset signal input from the reset signal generator (IC501) “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
93
LED11
O
LED drive signal output terminal
94
LED12
O
LED drive signal output terminal Not used (open)
95
TEST
I
For test terminal Normally fixed at “L”
96
WAKE UP
O
System wake up signal output to the system controller (IC401)
97
I2C DATA
I/O
Communication data bus with the IF controller (IC1) and system controller (IC401)
98
I2C CLK
I/O
Communication data reading clock signal input or transfer clock signal output with the IF
controller (IC1) and system controller (IC401)
99
LED13
O
LED drive signal output terminal Not used (open)
100
SIRCS
I
Remote control signal input from the remote control receiver (IC702)
Summary of Contents for HCD-ZX70DVD
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